int eingang= A0;
int sensorWert = 0;
unsigned long AnalogonZeit  =  10; //ms
unsigned long AnalogoffZeit = 10000; //ms
unsigned long previousMillis1;
int LED = 10;

void setup()
{
Serial.begin(9600);
pinMode (LED, OUTPUT);
}

void loop()
{
  if (millis() - previousMillis1 > AnalogoffZeit)
  {
    previousMillis1 = millis();
    sensorWert =analogRead(eingang);
    Serial.print("Sensorwert = " );
    Serial.println(sensorWert);

    if (sensorWert >= 512 )
      {
      digitalWrite(LED, HIGH);
      }
    else
      {
      digitalWrite(LED, LOW);
      }

  }
}